1. /*

  2.  * Copyright  2001-2002,2004 The Apache Software Foundation

  3.  *

  4.  *  Licensed under the Apache License, Version 2.0 (the "License");

  5.  *  you may not use this file except in compliance with the License.

  6.  *  You may obtain a copy of the License at

  7.  *

  8.  *      http://www.apache.org/licenses/LICENSE-2.0

  9.  *

  10.  *  Unless required by applicable law or agreed to in writing, software

  11.  *  distributed under the License is distributed on an "AS IS" BASIS,

  12.  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  13.  *  See the License for the specific language governing permissions and

  14.  *  limitations under the License.

  15.  *

  16.  */

  17. package org.apache.tools.ant.util.optional;

  18. 

  19. import java.security.Permission;

  20. import org.apache.tools.ant.ExitException;

  21. 

  22. /**

  23.  * This is intended as a replacement for the default system manager.

  24.  * The goal is to intercept System.exit calls and make it throw an

  25.  * exception instead so that a System.exit in a task does not

  26.  * fully terminate Ant.

  27.  *

  28.  * @see ExitException

  29.  */

  30. public class NoExitSecurityManager extends SecurityManager {

  31. 

  32.     public void checkExit(int status) {

  33.         throw new ExitException(status);

  34.     }

  35. 

  36.     public void checkPermission(Permission perm) {

  37.         // no permission here

  38.     }

  39. }